Antimicrobial activities of essential oils of mint and peppermint as well as some of their main compounds / Leopold Jirovetz in The journal of essential oil research, Vol. 21 N° 4 (Juillet/Août 2009)  

Public ISBD [article]  inThe journal of essential oil research > Vol. 21 N° 4 (Juillet/Août 2009) . - pp. 363-366 Titre : Antimicrobial activities of essential oils of mint and peppermint as well as some of their main compounds Type de document : texte imprimé Auteurs : Leopold Jirovetz, Auteur ; Gerhard Buchbauer, Auteur ; Stefanie Bail, Auteur Article en page(s) : pp. 363-366 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Mentha canadensis piperita Lamiaceae Essential oil composition Menthol Menthone Antimicrobial activity Menthyl acetate 1,8-cineole Limonene β  -pinene β  -caryophyllene Eugenol Index. décimale : 646 Résumé : The oil of peppermint (Mentha x piperita L.) from the USA, a dementholized cornmint oil (M. canadensis L.), and a fraction of the dementholized cornmint oil were analyzed by GC-FID and GC/MS. The main constituents of the three samples analyzed were menthone (23.4%, 20.4% and 58.3%, respectively) and menthol (40.7%, 41.2% and 12.3%, respectively). The two oils, the cornmint oil fraction and seven mint oil compounds [(-)-menthol, (-)-menthone, (+/-)-menthyl acetate, 1,8-cineole, limonene, β-pinene and β-caryophyllene] were investigated for their antimicrobial effects against two Gram-positive bacteria (Staphylococcus aureus and Enterococcus faecalis), five Gram-negative bacteria (Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris, Klebsiella pneumoniae and Salmonella sp.) and the yeast Candida albicans using a modified agar dilution and agar diffusion method. Medium to high antimicrobial effects were found for both oils, the dementholized cornmint oil fraction, and the target-compounds against all Gram-positive bacteria, whereas against the Gram-negative bacteria and the yeast, one or more samples showed only weak or no activity. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top [article] Antimicrobial activities of essential oils of mint and peppermint as well as some of their main compounds [texte imprimé] / Leopold Jirovetz, Auteur ; Gerhard Buchbauer, Auteur ; Stefanie Bail, Auteur . - pp. 363-366. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 21 N° 4 (Juillet/Août 2009) . - pp. 363-366 Mots-clés : Mentha canadensis piperita Lamiaceae Essential oil composition Menthol Menthone Antimicrobial activity Menthyl acetate 1,8-cineole Limonene β  -pinene β  -caryophyllene Eugenol Index. décimale : 646 Résumé : The oil of peppermint (Mentha x piperita L.) from the USA, a dementholized cornmint oil (M. canadensis L.), and a fraction of the dementholized cornmint oil were analyzed by GC-FID and GC/MS. The main constituents of the three samples analyzed were menthone (23.4%, 20.4% and 58.3%, respectively) and menthol (40.7%, 41.2% and 12.3%, respectively). The two oils, the cornmint oil fraction and seven mint oil compounds [(-)-menthol, (-)-menthone, (+/-)-menthyl acetate, 1,8-cineole, limonene, β-pinene and β-caryophyllene] were investigated for their antimicrobial effects against two Gram-positive bacteria (Staphylococcus aureus and Enterococcus faecalis), five Gram-negative bacteria (Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris, Klebsiella pneumoniae and Salmonella sp.) and the yeast Candida albicans using a modified agar dilution and agar diffusion method. Medium to high antimicrobial effects were found for both oils, the dementholized cornmint oil fraction, and the target-compounds against all Gram-positive bacteria, whereas against the Gram-negative bacteria and the yeast, one or more samples showed only weak or no activity. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top

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